Two guardians of a young teen have been arrested for unlawful imprisonment following an investigation into allegations of prolonged abuse.

A 27-year-old man and his 34-year-old wife were taken into custody Saturday after police found the man's 13-year-old brother wounded on a park bench in Bremerton.

Police say the was teen injured and that they took him to Harrison Medical Center Friday night. There he is said to have given officers a detailed account of physical abuse, torture, imprisonment, and mistreatment by his older brother and older brother's wife.

The teen recounted horrifying "assault sessions" which he says occurred in the residence's garage, cellar, and bedroom. In one account, the teen told police the couple beat him unconscious with either a baseball bat or metal bar. He says he was bound to a chair, and sometimes hung from a rafter when these beatings occurred.

Recounting a particularly gruesome memory, the 13-year-old told police that his abusers "placed his hand in a bench vise, tightened the vise jaws and drove a nail through his hand with a hammer." He says the hammer was also used to hit his feet repeatedly, he was forced to strip, and was imprisoned inside a portable dog kennel for days without food or water. The kennel was secured with a ratchet device to prevent escape, according to police reports.

Police say the teen told them his older brother stapled his hands with a staple gun, and his sister-in-law cut him with a heated knife.

The teen told investigators the sessions which included beatings, burnings, and other forms of torture began earlier this summer, and continued until about two weeks ago when he managed a daring escape.

During the last session, the teen says his hands, feet, and mouth were taped shut as he was beaten with a baseball bat. The teen claims he was able to chew through the tape and finally escape. He says he hid on the streets for about two weeks before Bremerton police found him.

"I can't believe in this little, quiet neighborhood that something like that would happen," nearby resident Janet Ladyman says. "Horrifying is the only word I can think of. That poor kid."

Detectives searched the Gunn's residence and say they found evidence substantiating the teen's allegations.